﻿Not only microorganisms play important roles in medicine. Agriculture, and industry, but they also are excellent models for understanding cellular processes in both unicellular and multicellular organisms.

True

Which of the fallowing is a characteristic of all living systems (microbial cellular life)?

Evolution

communication

reproduction

Which of the fallowing statements is true?

Insulin is and example of products generated by microbes using genetic engineering

Microorganisms can change the characteristics of their habitat

More microorganisms in nature are beneficial than harmful

To which group of microorganisms is the generation of oxygen in the Earth's atmosphere attributed?

Cyanobacteria

______ that live in nodules on legume plants (e.g. soybean) can convert atmospheric nitrogen into ammonia.

Nitrogen fixing bacteria

Which of the fallowing statements is true?

Robert koch identified causative agents of anthrax and turberculosis

According to Kock's postulate after you observe the suspected microbe in the disease organisms for the first time under the microscope, what must you do next?